KOSHIBA Mitsunobu
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KOSHIBA  Mitsunobu
KOSHIBA Mitsunobu
Chairman Emeritus, JSR Corporation

Vice Chairman, Keizai Doyukai
Chair- Committee on Economic Security, Science & Technology, Keizai Doyukai 

Graduated from Chiba University and received a MS in Graphic Engineering. 

After studying in the US, joined Japan Synthetic Rubber (JSR) and assigned to Tokyo Research Lab as a research engineer of photoresists. Relocated to Silicon Valley to start JSR’s first US electronic materials operation and established a #1 supplier position of high performance and quality photoresists to support all major US semiconductor manufacturers. 
Returned to JSR Japan to run the global operations of the fine chemicals sector as a general manager and, then, promoted to Executive Officer in 2004, Became President and CEO in 2009, Chairman of the Board in 2019, and was appointed as Chairman Emeritus as of June 17th,  2021.

Currently serving as an outside director of Idemitsu Kosan, A Holdings, and TBM. 

Also founded Cdots LLC, a think tank, to support startups and help foreign companies to expand their business in Japan.
From 2019, serving as one of the vice chairs of Keizai Doyukai (Japan Association of Corporate Executives).